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Composite Polyester Film

Key words:

Oil-Immersed Transformer Insulating Materials | Mutual Inductor Insulation Materials

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Product Consulting:

86-13901476700

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Product Description

Electrical composite polyester film is made of 2 or more layers of PET polyester film with F-grade adhesives, exhibiting excellent dielectric and mechanical properties. It is primarily utilized as sleeves for the high and low voltage coils in dry-type transformers, and it can also be used for motors or other high-voltage electrical equipment.
Note: The recommended widths for this product are 1,000 mm, 1,200 mm, 1,400 mm, 1,600 mm, 1,900 mm, 2,050 mm, and they can be custom-made based on customer requirements.
Storage: Store the product upright in a dry, well-ventilated, and clean room-temperature environment. It should not be placed near fires, heat sources, or in direct sunlight. The shelf life is 12 months, and it can still be used if it passes the inspection after exceeding the storage period.

Serial Number	Performance	Unit	Requirements
1	Thickness	mm	0.5	1.1	1.4
2	Tolerance	mm	±0.045	±0.11	±0.14
3	Quantitative	g/m2	700±70	1480±148	2000±220
4	breakdown voltage	KV	≥25	≥30	≥35
5	thickness of single layer film	Μm	250	350	350